I have just bought a XF87 tv and i do like it. Apart from the double ring remote but will get used to it. One problem i am having is with hooking it up to my PC which is running an msi gtx1080. I have read that you should use HDMI 2 or 3 for PC but what happens is that it seems to lose sync and brings up the resoulution on screen info or black screen randomly sometimes every few seconds or minutes apart. I have tried two HDMI cables to no avail. Using HDMI 1 this does not happen so will use that but i would like to know what the problem is. Any ideas and is there a difference on input 1 & 2 for PC use?